Digital Industrial Vacuum Gauge, Accuracy +/-1.00 Percent, Gauge Case Material ABS, Nominal Dial Size 3 in, IP/NEMA Rating Not Rated, Hazardous Location Rating Not Rated, Compatible Process Media Liquids and Compatible Gases, Sensor Material Silicone, Socket Material Stainless Steel, Process Connection Type NPT, Display Units bar, in Hg, kg/sq cm, kPa, mbar, mm Hg, oz/sq in, psi, Process Connection Gender Male, Battery Type 9V Battery, Process Connection Location Bottom